https://gcc.gnu.org/bugzilla/show_bug.cgi?id=26854
--- Comment #143 from Richard Biener <rguenth at gcc dot gnu.org> --- Checking with GCC 13, _num.i now behaves very nice with no obvious badness. compiler.i behaves OK-ish, peaks are the following now alias stmt walking : 10.33 ( 8%) parser function body : 38.65 ( 29%) dominator optimization : 17.81 ( 13%) tree forward propagate : 12.41 ( 9%) TOTAL : 132.12 all.i is OK as well parser function body : 7.10 ( 16%) dominator optimization : 5.55 ( 12%) TOTAL : 45.46 all of the numbers are at plain -O1 and a release checking built compiler.